.\" Copyright (c) 2011 Joseph Koshy.  All rights reserved.
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.\" $Id: elftc_copyfile.3 3960 2022-03-12 14:41:41Z jkoshy $
.\"
.Dd December 11, 2011
.Dt ELFTC_COPYFILE 3
.Os
.Sh NAME
.Nm elftc_copyfile
.Nd convenience function to copy data
.Sh LIBRARY
.Lb libelftc
.Sh SYNOPSIS
.In libelftc.h
.Ft in
.Fn elftc_copyfile "int ifd" "int ofd"
.Sh DESCRIPTION
The function
.Fn elftc_copyfile
copies the contents of the file referenced by argument
.Fa ifd
to the file referenced by argument
.Fa ofd .
.Pp
The argument
.Fa ifd
should contain a file descriptor opened for reading, with its file
offset at the beginning of the file.
.Pp
The argument
.Fa ofd
should contain a file descriptor opened for writing.
.Sh RETURN VALUES
.Rv -std
.Sh ERRORS
The function
.Fn elftc_copyfile
may fail with any of the errors returned by
.Xr fstat 2 ,
.Xr mmap 2 ,
.Xr munmap 2 ,
.Xr read 2 ,
.Xr write 2 ,
or
.Xr malloc 3 .
.Sh SEE ALSO
.Xr fstat 2 ,
.Xr mmap 2 ,
.Xr munmap 2 ,
.Xr read 2 ,
.Xr write 2 ,
.Xr malloc 3
